The USA Today details the initial charges expected to be filed, as well as information on an accomplice who will be charged:

Antoinette Davis, 25 is charged with human trafficking and felony child abuse.
An accomplice, Andrette McNeill, 29, will face kidnapping charges. He was seen on surveillance footage carrying Shaniya at a Sanford hotel. As a result, another man who was arrested last week has been freed.